CN204786526U - Elliptical tube air heater's heat exchange pipe and pipe plate's connection seal structure - Google Patents
Elliptical tube air heater's heat exchange pipe and pipe plate's connection seal structure Download PDFInfo
- Publication number
- CN204786526U CN204786526U CN201520220824.XU CN201520220824U CN204786526U CN 204786526 U CN204786526 U CN 204786526U CN 201520220824 U CN201520220824 U CN 201520220824U CN 204786526 U CN204786526 U CN 204786526U
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- CN
- China
- Prior art keywords
- heat exchange
- pipeline section
- tube main
- heat exchanger
- connection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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- Air Supply (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses an elliptical tube air heater's heat exchange pipe and pipe plate's connection seal structure, including heat exchange tube main part and tube sheet, the transversal ellipse of personally submitting of heat exchange tube main part, heat exchange tube main part both ends are equipped with the connection pipeline section that forms through processing heat exchange tube main part both ends respectively, that connects the pipeline section transversally personally submits circularly, and the heat exchange tube main part formed the smoke chamber with the inner chamber of connecting the pipeline section, be equipped with the transversal circular shape mounting hole of personally submitting on the tube sheet, the heat exchange tube main part is passed through in the mounting hole of connection pipeline section cartridge on the tube sheet of tip, the pore wall of mounting hole is equipped with the sealing washer with being connected between the pipeline section. Adopt the elliptical tube air heater of the structure, the preparation process is few, the cost of manufacture low, and assembly and easy dismounting are favorable to the change of heat exchange tube.
Description
Technical field
The utility model relates to air preheater, is specifically related to the connection hermetically-sealed construction of exchanger tubes and tubesheets.
Background technology
The heat transfer coefficient of elliptical tube is higher than pipe, and the resistance be subject to is lower than pipe, and thus oval tube heat exchanger has larger advantage relative to pipe heat exchanger.But also there is following drawback in existing elliptical tube air preheater.One is: the oval installing hole on elliptical tube air preheater tube sheet, need process with NC flame cutting machine, tube sheet is temperature distortion in process, the tube sheet of machine-shaping need carry out again smooth, compared with processing with pipe air preheater tube sheet, increase manufacturing process, too increase production cost simultaneously.Two are: elliptical heat exchange tube inserts after in the oval installing hole on tube sheet, need to be sealed by the mode of welding; The replacing of heat exchanger tube is made to become very difficult like this.
Summary of the invention
The technical problems to be solved in the utility model is for above-mentioned defect, provides a kind of connection hermetically-sealed construction of exchanger tubes and tubesheets of elliptical tube air preheater, with the easy easy object with reducing production cost of the replacing reaching heat exchanger tube.
For solving the problems of the technologies described above, the connection hermetically-sealed construction of the exchanger tubes and tubesheets of the elliptical tube air preheater that the utility model provides, comprise heat exchanger tube main body and tube sheet, its design feature is: the cross section ovalize of described heat exchanger tube main body, heat exchanger tube main body two ends are respectively equipped with the connection pipeline section by processing heat exchanger tube main body both ends, the circular in cross-section of described connection pipeline section, heat exchanger tube main body formed smoke chamber with the inner chamber being connected pipeline section; Described tube sheet is provided with the installing hole of circular in cross-section, and described heat exchanger tube main body is inserted in the installing hole on tube sheet by the connection pipeline section of end, and the hole wall of described installing hole is provided with sealing ring with being connected between pipeline section.
Described installing hole is the shoulder hole that outer imperial palace is little, and described sealing ring is contained in the macropore of shoulder hole.
Described sealing ring is carbon seal ring.
On the described chamber wall crossing smoke chamber, sintering has enamel layer.
The cross section ovalize of heat exchanger tube main body of the present utility model, the both ends of heat exchanger tube main body respectively process the connection pipeline section of one section of circular in cross-section, owing to there is the connection pipeline section of circular in cross-section, NC flame cutting machine is adopted to carry out the processing of elliptical aperture with regard to not needing, only need process circular hole by the mode of cutting on tube sheet, eliminate and adopt NC flame cutting machine to carry out processing and the tube sheet smooth operation again brought, saving of work and time, thus cost of manufacture is low.Or owing to there is the connection pipeline section of circular in cross-section, connect after in the circular mounting hole on pipeline section Inserting Tube plate, sealing ring can be adopted to seal, overcome the not easily changeable defect of the heat exchanger tube brought because of welded seal in prior art.
In sum, the utility model has the advantage of: relative to prior art, production process is few, cost of manufacture is low, and assembling and easy accessibility, be conducive to the replacing of heat exchanger tube.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in further detail:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the profile along A-A line in Fig. 1;
Fig. 3 is the profile along B-B line in Fig. 1.
Detailed description of the invention
See figure, the connection hermetically-sealed construction of the exchanger tubes and tubesheets of elliptical tube air preheater comprises heat exchanger tube main body 2 and tube sheet 1; Tube sheet 1 is provided with the installing hole 7 of circular in cross-section, and described installing hole 7 is the shoulder hole that outer imperial palace is little; Heat exchanger tube main body 2 two ends are respectively equipped with the connection pipeline section 3 by processing heat exchanger tube main body 2 both ends.As shown in Figure 2, the cross section ovalize of described heat exchanger tube main body 2; As shown in Figure 3, the circular in cross-section of described connection pipeline section 3.Again see Fig. 1, described heat exchanger tube main body 2 is inserted in the installing hole 7 on tube sheet 1 by the connection pipeline section 3 of end, the hole wall of described installing hole is provided with sealing ring 4 with being connected between pipeline section 3, and described sealing ring 4 is contained in the macropore of shoulder hole, and described sealing ring 4 adopts carbon seal ring.Become sired results dress by ellipse, just can process circular connection pipeline section 3 at heat exchanger tube main body 2 both ends of ellipse.
Continue see Fig. 1, described heat exchanger tube main body 2 formed smoke chamber 5 with the inner chamber being connected pipeline section 3; On the described internal chamber wall crossing smoke chamber 5, sintering has enamel layer 6.Certainly, cross smoke chamber 5 outer chamber wall on also can sinter enamel layer 6.
Claims (5)
1. the connection hermetically-sealed construction of the exchanger tubes and tubesheets of an elliptical tube air preheater, comprise heat exchanger tube main body (2) and tube sheet (1), it is characterized in that: the cross section ovalize of described heat exchanger tube main body (2), heat exchanger tube main body (2) two ends are respectively equipped with the connection pipeline section (3) by processing heat exchanger tube main body (2) both ends, the circular in cross-section of described connection pipeline section (3), heat exchanger tube main body (2) formed smoke chamber (5) with the inner chamber being connected pipeline section (3); Described tube sheet (1) is provided with the installing hole of circular in cross-section, described heat exchanger tube main body (2) is inserted in the installing hole on tube sheet (1) by the connection pipeline section (3) of end, and the hole wall of described installing hole is provided with sealing ring (4) with being connected between pipeline section (3).
2. the connection hermetically-sealed construction of the exchanger tubes and tubesheets of elliptical tube air preheater according to claim 1, is characterized in that: described installing hole is the shoulder hole that outer imperial palace is little, and described sealing ring (4) is contained in the macropore of shoulder hole.
3. the connection hermetically-sealed construction of the exchanger tubes and tubesheets of elliptical tube air preheater according to claim 1 and 2, is characterized in that: described sealing ring (4) is carbon seal ring.
4. the connection hermetically-sealed construction of the exchanger tubes and tubesheets of elliptical tube air preheater according to claim 3, is characterized in that: on the described chamber wall crossing smoke chamber (5), sintering has enamel layer (6).
5. the connection hermetically-sealed construction of the exchanger tubes and tubesheets of elliptical tube air preheater according to claim 1 and 2, is characterized in that: on the described chamber wall crossing smoke chamber (5), sintering has enamel layer (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520220824.XU CN204786526U (en) | 2015-04-14 | 2015-04-14 | Elliptical tube air heater's heat exchange pipe and pipe plate's connection seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520220824.XU CN204786526U (en) | 2015-04-14 | 2015-04-14 | Elliptical tube air heater's heat exchange pipe and pipe plate's connection seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204786526U true CN204786526U (en) | 2015-11-18 |
Family
ID=54526572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520220824.XU Expired - Fee Related CN204786526U (en) | 2015-04-14 | 2015-04-14 | Elliptical tube air heater's heat exchange pipe and pipe plate's connection seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204786526U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106225004A (en) * | 2016-08-30 | 2016-12-14 | 江苏国信泗阳生物质发电有限公司 | A kind of enamel elliptical tube air preheater and installation method |
| CN111465268A (en) * | 2020-04-14 | 2020-07-28 | 华为技术有限公司 | Radiator and manufacturing method thereof and electronic equipment |
-
2015
- 2015-04-14 CN CN201520220824.XU patent/CN204786526U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106225004A (en) * | 2016-08-30 | 2016-12-14 | 江苏国信泗阳生物质发电有限公司 | A kind of enamel elliptical tube air preheater and installation method |
| CN111465268A (en) * | 2020-04-14 | 2020-07-28 | 华为技术有限公司 | Radiator and manufacturing method thereof and electronic equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 Termination date: 20190414 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |